#include <vector>
#include <iostream>

using namespace std;
typedef void (*task_t)();

void task1()
{
    cout << "task1 executing" << endl;
}

void task2()
{
    cout << "task2 executing" << endl;
}

void task3()
{
    cout << "task3 executing" << endl;
}

void task4()
{
    cout << "task4 executing" << endl;
}

vector<task_t> Task{task1,task2,task3,task4};
